added contribution guidelines

CHANGELOG

-cda4d52 (HEAD -> master, tag: 1.9.3, origin/master, origin/HEAD) added code coverage configuration file
-a2fa2be (tag: 1.9.2) simplified CI for the backend
-34029c7 (tag: 1.9.1) added missing dependencies (coverage & psycopg2)
-e6c8016 (tag: 1.9.0) added missing dependency (gunicorn)
-72aa622 (tag: 1.8.9) removed port forwarding for the database (docker) container
-143e218 (tag: 1.8.8) combined CI for backend and frontend
-d7f3841 (tag: 1.8.7) simplified frontend CI
-4d2247e (tag: 1.8.6) enable CI for frontend
-150d280 (tag: 1.8.5) merge source code for frontend and backend
-5f8b59f (tag: 1.8.4) Initial commit
+dceec53 (HEAD -> master, tag: 1.9.4, origin/master, origin/HEAD) updated README
+cda4d52 (tag: 1.9.3) added code coverage configuration file
+a2fa2be (tag: 1.9.2) simplified CI for the backend
+34029c7 (tag: 1.9.1) added missing dependencies (coverage & psycopg2)
+e6c8016 (tag: 1.9.0) added missing dependency (gunicorn)
+72aa622 (tag: 1.8.9) removed port forwarding for the database (docker) container
+143e218 (tag: 1.8.8) combined CI for backend and frontend
+d7f3841 (tag: 1.8.7) simplified frontend CI
+4d2247e (tag: 1.8.6) enable CI for frontend
+150d280 (tag: 1.8.5) merge source code for frontend and backend
+5f8b59f (tag: 1.8.4) Initial commit

CONTRIBUTING.md

+# Contributing to Machina Callida
+
+We welcome contributions from the community, and want to make contributing to this project as easy and transparent as possible, whether you contribute by
+
+- reporting a bug,
+- submitting code,
+- proposing a new feature, or
+- put yourself forward to become the maintainer,
+- ...
+
+Please read these guidelines before contributing.
+If you have questions about them or want to suggest improvements, please [open a new issue](https://scm.cms.hu-berlin.de/callidus/machina-callida/-/issues/new).
+
+## Development on GitLab
+
+We use GitLab to host source code and documentation, to track issues such as bug reports and feature requests, and to provide Machina Callida downloads to users.
+
+## Report a bug or other issues
+
+We track bugs in and issues with Machina Callida, and record proposals of new features, in GitLab issues.
+You can report a bug, request a feature, or simply ask a question, by [opening a new issue](https://scm.cms.hu-berlin.de/callidus/machina-callida/-/issues/new).
+It's easy.
+
+## Contribute code or documentation through merge requests
+
+[Merge requests](https://docs.gitlab.com/ee/user/project/merge_requests/getting_started.html) are the best way to propose changes to the codebase or the documentation sources. We actively welcome your merge requests:
+
+1. Fork this repository.
+2. Open a new issue describing what you are planning to do. The maintainer will decide and communicate whether your change is a *hotfix* or a *feature*.
+3. Create a `feature` branch (for new functionality) with `git checkout -b "feature/YOUR_BRANCH_NAME_HERE"`,  
+or a `hotfix` branch (for bug fixes) with `git checkout -b "hotfix/YOUR_BRANCH_NAME_HERE"`.
+4. Do your work in this branch.
+    - If you add code, add tests!
+    - Update the relevant documentation!
+    - Test your changes locally!
+5. Push your branch and create a merge request.  
+    - If your contribution is new functionality, create it against `machina-callida:develop`.
+    - If your contribution is a bug fix, create it against `machina-callida:master`.
+
+### Code review schedules
+
+We perform reviews of all changes to Machina Callida, be they in code, documentation, configuration, etc. 
+Note that we may sometimes not be able to perform reviews right away due to illness, holidays, etc.
+
+## License
+
+By contributing code to Machina Callida, you agree that your contributions will be licensed under its [Apache License, Version 2.0](LICENSE).  
+By contributing documentation to Machina Callida, you agree that your contributions will be licensed under its [CC0 1.0 Universal (CC0 1.0)](https://creativecommons.org/publicdomain/zero/1.0/legalcode) license.
+
+## Governance
+
+This section describes the decision-making processes for the Machina Callida project, and the roles involved in them.
+
+### Roles
+
+In the Machina Callida project, the following roles are defined.
+
+- **Core contributors:** Active contributors to the Machina Callida software. The development of Machina Callida is either part of the job description of core contributors, or they are actively making substantial contributions to the project.
+
+- **Maintainer:** Machina Callida has a single maintainer. This person is responsible for the development and release workflow of Machina Callida, including project and software documentation and facilitating maintenance transfers, as well as nominating core contributors.
+
+- **Principal investigators:** As Machina Callida is research software, the principal investigators are responsible for strategic development of the project.
+
+### Decision making
+
+Decisions are usually made by the maintainer, with potential recourse to the core contributors, the principal investigators, or both.

LICENSE

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README.md

@@ -31,4 +31,4 @@ To snapshot a running container, use `docker commit CONTAINER_ID`. It returns a
 
 ## Documentation
 ### Changelog
-To update the changelog, use: `git log --oneline --decorate --color > CHANGELOG`
+To update the changelog, use: `git log --oneline --decorate > CHANGELOG`

mc_backend/Dockerfile

@@ -3,27 +3,9 @@
 FROM python:3.8
 
 RUN useradd -ms /bin/bash mc
-
 WORKDIR /home/mc
-
 RUN python -m venv venv
-
-RUN apt-get update
-RUN apt-get install -y openssh-server nano
-
 COPY requirements.txt requirements.txt
 RUN venv/bin/pip install --no-cache-dir --default-timeout=120 -r requirements.txt
-
-#prepare ssh
-RUN mkdir /var/run/sshd
-RUN echo 'root:root' | chpasswd
-RUN sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config
-RUN sed 's@session\s*required\s*pam_loginuid.so@session optional pam_loginuid.so@g' -i /etc/pam.d/sshd
-ENV NOTVISIBLE "in users profile"
-RUN echo "export VISIBLE=now" >> /etc/profile
-RUN /usr/bin/ssh-keygen -A
-CMD ["/usr/sbin/sshd", "-D"]
-
 COPY . mc_backend
-
 WORKDIR /home/mc/mc_backend

mc_backend/run_csm.py

 from flask import Flask
-
 from csm import get_app, get_cfg
 
 app: Flask = get_app()

mc_frontend/Dockerfile

@@ -4,7 +4,7 @@ RUN useradd -ms /bin/bash mc
 
 WORKDIR /home/mc
 RUN apt update
-# for testing
+# for testing with headless chrome browser
 RUN wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
 RUN apt install -y ./google-chrome-stable_current_amd64.deb